Biology > MARK SCHEMES > GCSE COMBINED SCIENCE: TRILOGY 8464/B/2H Biology Paper 2H Mark scheme (All)
GCSE COMBINED SCIENCE: TRILOGY 8464/B/2H Biology Paper 2H Mark scheme
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GCSE COMBINED SCIENCE: TRILOGY 8464/B/2H Biology Paper 2H Mark scheme Question Answers Extra information Mark AO / Spec. Ref. 01.1 1 AO2 4.6.1.3 01.2 any one from: • 2 strands / chai... ns that are twisted / coiled / spiralled • double helix • (long) polymer allow cross links between 2 strands / chains allow reference to nucleotides or sugars, phosphates and bases 1 AO1 4.6.1.3 01.3 amino acids protein in this order only allow polypeptide 1 1 AO1 4.6.1.3 01.4 all the genetic material (of an organism) allow DNA / genes for genetic material ignore chromosomes 1 AO1 4.6.1.3 01.5 tracing how aboriginal people spread across Australia 1 AO2 4.6.1.3 01.6 variation ignore genetic/environmental 1 AO1 4.6.2.1 MARK SCHEME – GCSE COMBINED SCIENCE: TRILOGY – 8464/B/2H – JUNE 2020 8 01.7 stronger / larger (shell) (so) more likely to (survive and) breed or (so) more likely to (survive and) pass on genes OR (better) camouflaged (1) (so) less likely to be eaten and will breed more (1) [Show More]
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